Truck frame crossmember



FIG. 1 is a top perspective view of a truck frame crossmember;

FIG. 2 is a bottom perspective view of the design;

FIG. 3 is a top plan view of the design;

FIG. 4 is a bottom plan view of the design;

FIG. 5 is a side view of the design, as viewed from either side; and,

FIG. 6 is an end view of the design, as viewed from either end. 

The ornamental design for a truck frame crossmember, as shown and described. 